tobias/waybar
1
0
Fork 0
mirror of https://github.com/rad4day/Waybar.git synced 2023-12-21 10:22:59 +01:00
Code Issues Packages Projects Releases Wiki Activity

cpu: port parseCpuinfo to BSDs

Browse Source
This commit is contained in:
Jan Beich
2019-08-11 13:10:37 +00:00
parent c4f7cdeec4
commit 4e567d0483
7 changed files with 136 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

97
src/modules/cpu/bsd.cpp Normal file
View File

@ -0,0 +1,97 @@
#include "modules/cpu.hpp"
#include <sys/types.h>
#include <sys/sysctl.h>
#include <cstdlib> // malloc
#include <unistd.h> // sysconf
#if defined(__NetBSD__) || defined(__OpenBSD__)
# include <sys/sched.h>
#else
# include <sys/resource.h>
#endif
#if defined(__NetBSD__)
typedef uint64_t cp_time_t;
#else
typedef long cp_time_t;
#endif
#if defined(__NetBSD__) || defined(__OpenBSD__)
typedef uint64_t pcp_time_t;
#else
typedef long pcp_time_t;
#endif
std::vector<std::tuple<size_t, size_t>> waybar::modules::Cpu::parseCpuinfo() {
cp_time_t sum_cp_time[CPUSTATES];
size_t sum_sz = sizeof(sum_cp_time);
int ncpu = sysconf(_SC_NPROCESSORS_CONF);
size_t sz = CPUSTATES * (ncpu + 1) * sizeof(pcp_time_t);
pcp_time_t *cp_time = static_cast<pcp_time_t *>(malloc(sz)), *pcp_time = cp_time;
#if defined(__NetBSD__)
int mib[] = {
CTL_KERN,
KERN_CP_TIME,
};
if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), sum_cp_time, &sum_sz, NULL, 0)) {
throw std::runtime_error("sysctl kern.cp_time failed");
}
for (int state = 0; state < CPUSTATES; state++) {
cp_time[state] = sum_cp_time[state];
}
pcp_time += CPUSTATES;
if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), pcp_time, &sz, NULL, 0)) {
throw std::runtime_error("sysctl kern.cp_time failed");
}
#elif defined(__OpenBSD__)
{
int mib[] = {
CTL_KERN,
KERN_CPTIME,
};
if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), sum_cp_time, &sum_sz, NULL, 0)) {
throw std::runtime_error("sysctl kern.cp_time failed");
}
}
for (int state = 0; state < CPUSTATES; state++) {
cp_time[state] = sum_cp_time[state];
}
pcp_time = cp_time;
sz /= ncpu + 1;
{
int mib[] = {
CTL_KERN,
KERN_CPTIME2,
0,
};
for (int cpu = 0; cpu < ncpu; cpu++) {
mib[2] = cpu;
pcp_time += CPUSTATES;
if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), pcp_time, &sz, NULL, 0)) {
throw std::runtime_error("sysctl kern.cp_time2 failed");
}
}
}
#else
if (sysctlbyname("kern.cp_time", sum_cp_time, &sum_sz, NULL, 0)) {
throw std::runtime_error("sysctl kern.cp_time failed");
}
for (int state = 0; state < CPUSTATES; state++) {
cp_time[state] = sum_cp_time[state];
}
pcp_time += CPUSTATES;
if (sysctlbyname("kern.cp_times", pcp_time, &sz, NULL, 0)) {
throw std::runtime_error("sysctl kern.cp_times failed");
}
#endif
std::vector<std::tuple<size_t, size_t>> cpuinfo;
for (int cpu = 0; cpu < ncpu + 1; cpu++) {
pcp_time_t total = 0, *single_cp_time = &cp_time[cpu * CPUSTATES];
for (int state = 0; state < CPUSTATES; state++) {
total += single_cp_time[state];
}
cpuinfo.emplace_back(single_cp_time[CP_IDLE], total);
}
free(cp_time);
return cpuinfo;
}